GB127892A - Improvements in or relating to Ordnance Breech Mechanism. - Google Patents

Improvements in or relating to Ordnance Breech Mechanism.

Info

Publication number
GB127892A
GB127892A GB861517A GB861517A GB127892A GB 127892 A GB127892 A GB 127892A GB 861517 A GB861517 A GB 861517A GB 861517 A GB861517 A GB 861517A GB 127892 A GB127892 A GB 127892A
Authority
GB
United Kingdom
Prior art keywords
carrier
screw
breech
lever
hinge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB861517A
Inventor
Arthur Trevor Dawson
George Thomas Buckham
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB861517A priority Critical patent/GB127892A/en
Priority to FR499833D priority patent/FR499833A/en
Publication of GB127892A publication Critical patent/GB127892A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/02—Block action, i.e. the main breech opening movement being transverse to the barrel axis
    • F41A3/04—Block action, i.e. the main breech opening movement being transverse to the barrel axis with pivoting breech-block
    • F41A3/08—Block action, i.e. the main breech opening movement being transverse to the barrel axis with pivoting breech-block carrying a rotably mounted obturating plug of the screw-thread or the interrupted-thread type

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

127,892. Dawson, Sir A. T., and Buckham, Sir G. T. June 15, 1917. Ordnance b r e e c h mechanism. - Relates to screw mechanism of the swinging - carrier type, in which the breech-actuating handlever is pivoted on the carrier to move about an axis parallel to the carrier hinge, and has a pin engaging a slot in t h e breech - screw. According to the invention, the pin is so arranged in relation to the pivot of the hand-lever that the pin passes over the dead-point, (i.e. in front of a transverse plane through the pivot of the hand-lever), to lock the mechanism in closed position. The invention is particularly applicable to small-calibre ordnance in which the breech-screw engages threads on the outside of the barrel. Fig. 2 shows, in plan, the breech-screw A<1> rotatably mounted on a. carrier C hinged at C' to the gun and engaging threads on the outside of the barrel A. The screw is rotated for unlocking by a lever B pivoted at b to the carrier and having a spherical projection b<2> engaging a longitudinal slot a<2> in a rearward extension of the screw. After the unlocking movement, continued motion of the lever brings the projection b<2> into engagement with a stop c<x> on the carrier to swing the carrier and block aside about the hinge C', movement of the block relatively to the carrier being prevented by the engagement of a lug ax on the block beneath a projection a on the fixed part of the carrier hinge.
GB861517A 1917-06-15 1917-06-15 Improvements in or relating to Ordnance Breech Mechanism. Expired GB127892A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB861517A GB127892A (en) 1917-06-15 1917-06-15 Improvements in or relating to Ordnance Breech Mechanism.
FR499833D FR499833A (en) 1917-06-15 1918-08-06 Improvements to the breech mechanism of barrels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB861517A GB127892A (en) 1917-06-15 1917-06-15 Improvements in or relating to Ordnance Breech Mechanism.

Publications (1)

Publication Number Publication Date
GB127892A true GB127892A (en) 1919-06-19

Family

ID=32343408

Family Applications (1)

Application Number Title Priority Date Filing Date
GB861517A Expired GB127892A (en) 1917-06-15 1917-06-15 Improvements in or relating to Ordnance Breech Mechanism.

Country Status (2)

Country Link
FR (1) FR499833A (en)
GB (1) GB127892A (en)

Also Published As

Publication number Publication date
FR499833A (en) 1920-02-24

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